Alert archive / Alabama / Flash Flood Warnings in 2002

Flash Flood Warning 1, NWS Mobile, AL

July 20, 2002Conecuh County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 20, 2002, 5:42 PM CDT for Conecuh County, Alabama. It was in force for 93 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 20, 2002, 5:42 PM CDT (22:42 UTC)
Expired
Jul 20, 2002, 7:15 PM CDT
In force
93 min
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County Conecuh County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.7 hours before the alert went out and 190 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2002-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 769 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2002-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
769 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1070 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KMOB 202242
FFWMOB
ALC035-210015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
540 PM CDT SAT JUL 20 2002

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA
  THIS INCLUDES THE CITY OF EVERGREEN

* UNTIL 715 PM CDT

* AT 538 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
  RAIN NEAR OWASSA...OR ABOUT 5 MILES NORTH OF EVERGREEN...MOVING    
  SLOWLY SOUTHEAST AT 5 MPH.

* THE THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL AFFECT MUCH OF 
CENTRAL AND NORTHERN COVINGTON COUNTY THROUGH 630 PM.

ALABAMA STATE TROOPER HAVE REPORTED BOTH LANES OF INTERSTATE 65 WERE 
COVERED WITH WATER...AND THE INTERSTATE WAS CLOSED NORTH OF 
EVERGREEN NEAR OWASSA.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY 
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK 
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MOBILE.

LAT...LON 3158 8691 3145 8713 3130 8699 3145 8673
2 follow-up statements
000 
WGUS74 KMOB 202255
FFSMOB
ALC035-200015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
550 PM CDT SAT JUL 20 2002

...A FLASH FLOOD WARNING CONTINUES IN EFFECT UNTIL 715 PM FOR 
CONECUH COUNTY IN SOUTHWEST ALABAMA...

AT 550 PM CDT...WEATHER SERVICE RADAR INDICATED THUNDERSTORMS WITH 
VERY HEAVY RAIN CONTINUING MOVING SLOWLY SOUTHEAST AT 5 MPH ACROSS 
THE WARNED AREA.  RADAR ESTIMATES 2 TO 4 INCHES OF RAIN HAS FALLEN 
OVER THE AREA OVER THE PAST 3 HOURS.  ALABAMA STATE TROOPERS ARE 
REPORTING THAT INTERSTATE 65 HAS BEEN FLOODED 4 MILES NORTH OF 
OWASSA...CLOSING BOTH LANES OF THE INTERSTATE.  

REMEMBER...A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR 
OCCURRING.  RESIDENTS LIVING IN AREAS SUBJECT TO FLOODING SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. IF FLASH FLOODING
IS OBSERVED...MOVE QUICKLY TO HIGHER GROUND AND NEVER DRIVE INTO AN 
AREA WHERE WATER COVERS THE ROAD.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MOBILE.
000 
WGUS74 KMOB 210029
FFSMOB
ALC035-210045-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
725 PM CDT SAT JUL 20 2002

...THE FLASH FLOOD WARNING FOR CONECUH COUNTY IN SOUTHWEST ALABAMA   
   WAS ALLOWED TO EXPIRE AT 715 PM...

...NO FLOODING PROBLEMS ARE BEING REPORTED IN CONECUH COUNTY AT THIS 
   HOUR...

...ALABAMA STATE TROOPERS REPORT INTERSTATE 65 IS OPEN FOR TRAFFIC...


AT 720 PM CDT...WEATHER SERVICE RADAR SHOWED RAINS DIMINISHING OVER 
CONECUH COUNTY...WITH ALL OF THE HEAVY RAINS SHIFTING WELL SOUTH AND 
EAST OF CONECUH COUNTY.  NO ADDITIONAL FLOODING REPORTS HAVE BEEN 
RECEIVED BY THE NATIONAL WEATHER SERVICE FROM CONECUH COUNTY.  NO 
ADDITIONAL FLOODING PROBLEMS ARE ANTICIPATED THIS EVENING.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 19, 7:31 PM CDTSevere Thunderstorm WarningMOB29 min
Jul 19, 8:55 PM CDTSevere Thunderstorm WarningMOB35 min
Jul 19, 9:52 PM CDTSevere Thunderstorm WarningMOB38 min
Jul 20, 1:48 PM CDTSevere Thunderstorm WarningMOB42 min
Jul 20, 3:49 PM CDTSevere Thunderstorm WarningMOB26 min
Jul 20, 4:48 PM CDTSevere Thunderstorm WarningMOB42 min
Jul 20, 5:03 PM CDTSevere Thunderstorm WarningMOB27 min
Jul 20, 5:13 PM CDTSevere Thunderstorm WarningMOB47 min
Jul 20, 5:32 PM CDTSevere Thunderstorm WarningMOB28 min
Jul 20, 5:54 PM CDTSevere Thunderstorm WarningMOB51 min
Jul 20, 6:32 PM CDTSevere Thunderstorm WarningMOB28 min
Jul 20, 6:36 PM CDTSevere Thunderstorm WarningMOB24 min
Jul 20, 6:45 PM CDTSpecial Marine WarningMOB60 min

Nearby

Flash Flood Warnings in Alabama, 2002Every flash flood warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.